package com.huazi.servicebase;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.time.Duration;

/**
 * @author shkstart
 * @create 2021-03-25 18:04
 */
@Configuration//标识配置类
@EnableCaching//开启缓存
public class RedisConfig extends CachingConfigurerSupport {
    @Bean
    public RedisTemplate<String,Object> redisTemplate(RedisConnectionFactory factory){
        //创建缓存对象
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        //创建字符串类型序列化缓存
        StringRedisSerializer redisSerializer = new StringRedisSerializer();

        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om) ;
        template. setConnectionFactory (factory) ;
        //key序列化方式
        template. setKeySerializer (redisSerializer) ;
        //value序列化
        template.setValueSerializer (jackson2JsonRedisSerializer);
        //value hashmap字列化
        template.setHashValueSerializer (jackson2JsonRedisSerializer) ;
        return template;
    }
    @Bean
    public CacheManager cacheManager (RedisConnectionFactory factory) {
        RedisSerializer<String> redisSerializer=new StringRedisSerializer();
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer=new Jackson2JsonRedisSerializer (Object.class) ;
        //解决查询缓存转换异常的问题
        ObjectMapper om=new ObjectMapper() ;
        om. setVisibility(PropertyAccessor.ALL, JsonAutoDetect. Visibility.ANY);
        om. enableDefaultTyping (ObjectMapper.DefaultTyping.NON_FINAL) ;
        jackson2JsonRedisSerializer.setObjectMapper(om);
        //配置序列化(解决乱码的问题) ,过期时间600秒
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig()
                .entryTtl (Duration.ofSeconds(600))
                .serializeKeysWith (RedisSerializationContext.SerializationPair.fromSerializer(redisSerializer))
                .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer))
                .disableCachingNullValues();
        RedisCacheManager cacheManager = RedisCacheManager.builder(factory)
                .cacheDefaults (config)
                .build();
        return cacheManager ;
    }
}
